Rob Gronkowski is not concerned about his contract status.
The New England Patriots exercised their option on Gronkowski, keeping him underpaid relative to his production.
Gronkowski is set to make a $2.25 million base salary this season, which escalates to $4.25 million in 2017, $8 million in 2018 and $9 million in 2019.
Gronkowski's tweet last month saying the option "basically equals pay cut" was viewed as part humor and part discontentment.
"No, that's not on my mind at all," he told USA Today's For The Win, when asked if he had any contract concerns. "I started offseason workouts yesterday. It just feels great to be back with the team working out, getting back in football shape and getting prepared for the season."